Will they be OK as the spec calls for a Radial rear tyre?
Thanks
Well, I think the jury is still out on that one?

To be sure, in the riders manual that comes with the bike, Triumphs reccos the tires that should be used -- those listed are, for-sure, OK.
There's been lots of discussion on the Forum about the radial/bias pros/cons -- but, the fact that new Triumphs still come from the factory with (some) bias ply tires mounted must mean that they're OK?

If/when you mount the Mitas E07+ -- you'll be the knowledgeable one...l

You're welcome